I'm being paranoid

Me and my SO had sex 3/1 and 3/8 the first date was condom and pulling out before he came, the second date it had spermicide in the condom also with using the said methods. My period is supposed to come in Saturday and I'm running on 2 days late, there was white stuff on the outside of the condom but he says it is my lubricant and I'm freaking out. I took plan b in January and that might have affected my period. Any help?